Question about the 1956 Emerson C-502 colour TV

[David Roper]

The tube in the chassis from the ETF link is obviously round, so maybe the art department was tasked with putting together a picture of a set which had not yet been built and took some liberties. It is possible (though I think unlikely) that Emerson initially intended to use a rectangular mask. I recall a Hoffman set with a 19AP4 which had a rectangular mask. That would seem about equally unlikely, but it happened.